银山铅锌矿尾矿坝浸润线最大Lyapunov指数分析
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摘要
浸润线是尾矿坝的重要监测项目 ,长期以来对监测数据缺乏系统分析。为了揭示浸润线的演化规律 ,通过相空间重构 ,对银山铅锌矿尾矿坝浸润线监测数据进行了最大Lyapunov指数分析。结果表明 ,尾矿坝浸润线时间序列存在正的最大Lyapunov指数 ;最大Lyapunov指数可以用来评价浸润线状态 ,其数值较大时 ,浸润线状态较差。这些结果对合理分析监测数据 ,进而指导尾矿坝安全管理将会有重要意义
Seepage line is a major item of monitoring, which data has lacked systematic analsis.To reveal the evolution law of the seepage line, the largest Lyapunov exponent was made by means of phase space reconstruction of the monitoring data of tailings dam of Yinshan Lead zimc Mine. The results indicate that there is a largest positive lyapunov exponent in the time series of the seepage line, which can be used to evaluate the status of the seepage line, with greater value meaning poorer status. This might be of important significance to the reasonable analysis of monitoring data for supervising the safety management of tailings dam.
Seepage line is a major item of monitoring, which data has lacked systematic analsis.To reveal the evolution law of the seepage line, the largest Lyapunov exponent was made by means of phase space reconstruction of the monitoring data of tailings dam of Yinshan Lead zimc Mine. The results indicate that there is a largest positive lyapunov exponent in the time series of the seepage line, which can be used to evaluate the status of the seepage line, with greater value meaning poorer status. This might be of important significance to the reasonable analysis of monitoring data for supervising the safety management of tailings dam.
引文
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2 陈守义.浅议上游法细粒尾矿堆坝问题.岩土力学,1995(3):70～76
3 高艳平,王余庆,辛鸿博.尾矿坝地震液化简化判别法.岩土工程学报,1995(5):72～79
4 傅 军,丁 晶,邓育仁.洪水混沌特性初步研究.水科学进展,1996(3):226～230
5 Vittor,Giovanna.OnthechaoticstructureoftideelevationinthelagoonofVenice.ProceedingsoftheCoastalEngineeringConfer ence,1992～1993,2
6 WolfA ,SwiftJB ,SwinneyHLandVastanoJA .DeterminingLyapunovExponentsFromaTimeSeries.Physics,1985(16D),285～317
7 田 野,徐 平.用岩体蠕变数据计算Lyapunov指数.长江科学院院报,1994(2):49～66
8 林振山.长期预报的相空间理论和模式.北京:气象出版社,1993
9 李作章,徐日升,穆鲁生,等.尾矿库安全技术.北京:航空工业出版社,1996
10 陈业建.上游法尾矿坝的中后期技术管理.有色矿山,1998(3):43～49
11 王武林,杨春和,阎金安.某铅锌矿尾矿坝工程勘察与稳定性分析.岩石力学与工程学报,1992(4):332～344
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